xfsettingsd crashed with signal 5 in __libc_start_main()

[Jean-Baptiste Lallement]

xfsettingsd crashes when booting a live session of Xubuntu Bionic.

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: xfce4-settings 4.12.3-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
Uname: Linux 4.15.0-15-generic x86_64
ApportVersion: 2.20.9-0ubuntu5
Architecture: amd64
CasperVersion: 1.393
Date: Wed Apr 18 15:07:53 2018
ExecutablePath: /usr/bin/xfsettingsd
LiveMediaBuild: Xubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180418)
ProcCmdline: xfsettingsd --sm-client-disable
ProcEnviron:
 PATH=(custom, no user)
 LANG=C.UTF-8
 XDG_RUNTIME_DIR=<set>
Signal: 5
SourcePackage: xfce4-settings
StacktraceTop:
 ?? ()
 __libc_start_main (main=0x5628799cb0a0, argc=2, argv=0x7fff2ddeb028, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff2ddeb018) at ../csu/libc-start.c:310
 ?? ()
Title: xfsettingsd crashed with signal 5 in __libc_start_main()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop: main (argc=<optimized out>, argv=<optimized out>) at main.c:235

[Jean-Baptiste Lallement (jibel)]

This is the crash generated when I hit bug 1763739 but it's due to an unavailable display.

[Theo Linkspfeifer (lastonestanding)]

Can this crash be still reproduced somehow?

[Launchpad Janitor (janitor)]

[Expired for xfce4-settings (Ubuntu) because there has been no activity for 60 days.]

[Mario Charest (stayprivate)]

I can reproduce this "at will". I have setup a vncserver following the instruction at https://www.smarthomebeginner.com/setup-vnc-server-on-ubuntu-linux/ but not a server but a desktop installation.

Whenever I start the vncserver (thus startxfce4) I get a crash.